. >> thank you, tom for wilderness foreign and obviously to bob who is that the science and discussion forward dramatically because one of the things we all know is we can't not do nothing or anything. see how many negatives are put in there to make a positive. we have to do something. as a clinician that these kids and families and our clinics in seeing the major education deficit on the fields today in all sports frankly, but also seeing the outcomes. some of the things that raise talking about in terms of understanding forces is really important and we just completed some work in developing measures they are using so we can understand their cognitive symptom kinds of effects of these to kids. i think that's very, very important outcome to what we need to link up with the games. from the perspective -- actually was at the aspen institute this summer, where u.s. nabobs question about, should we be eliminating football -- tackling a football before the age of 14. at that point i couldn't speak, although we did speak that night. one of the things i said as we've got to change things. in